A computational model of the bottlenose dolphin sonar: Feature-extracting method
نویسنده
چکیده
The data describing a process of echo-image formation in bottlenose dolphin sonar perception were accumulated in our experimental explorations. These data were formalized mathematically and used in the computational model, comparative testing of which in echo-discrimination tasks revealed no less capabilities then those of bottlenose dolphins.
منابع مشابه
On Novel Reception Models for Bottlenose Dolphin Echolocation
Bottlenose dolphin (Tursiops truncatus) echolocation resolution greatly exceeds measured beampattern and conventional hearing model performance. We explore the idea that teeth might aid conventional hearing. Nerve conduction requires neural delay lines, a requisite that might be met by unexplained specialised cell arrangements already reported. Jawbone resonance displays selectivity at 25-35 de...
متن کاملExposure amplitude and repetition affect bottlenose dolphin behavioral responses tosimulated mid-frequency sonar signals
Exposure amplitude and repetition affect bottlenose dolphin behavioral responses to simulated mid-frequency sonar signals" (2013). a b s t r a c t a r t i c l e i n f o Keywords: Acoustic exposure Behavioral response Bottlenose dolphin Dose–response Sound Thirty bottlenose dolphins (Tursiops truncatus) participated in a controlled exposure study using an acoustic stimulus that consisted of a si...
متن کاملCreation of a Biomimetic Model of Dolphin Hearing Through the Use of Evolutionary Computation
Niche exploitation by an organism cumulatively results from its existing adaptations and phylogenetic history. The biological sonar of dolphins is an adaptation for object (e.g. prey or obstacle) detection and classification in visually limited environments. Current biomimetic modeling of echo discrimination by dolphins emphasizes the mechanical and neurological filtering of the peripheral audi...
متن کاملDiscrimination of amplitude-modulated synthetic echo trains by an echolocating bottlenose dolphin.
Bottlenose dolphins (Tursiops truncatus) have an acute ability to use target echoes to judge attributes such as size, shape, and material composition. Most target recognition studies have focused on features associated with individual echoes as opposed to information conveyed across echo sequences (feature envelope of the multi-echo train). One feature of aspect-dependent targets is an amplitud...
متن کاملCognitive Adaptation of Sonar Gain Control in the Bottlenose Dolphin
Echolocating animals adjust the transmit intensity and receive sensitivity of their sonar in order to regulate the sensation level of their echoes; this process is often termed automatic gain control. Gain control is considered not to be under the animal's cognitive control, but previous investigations studied animals ensonifying targets or hydrophone arrays at predictable distances. To test wh...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- CoRR
دوره abs/0911.3125 شماره
صفحات -
تاریخ انتشار 2009